At CRJ Electronics, we feature the largest selection of computer fan adapter cables.

This guide is intended as a comprehensive resource, documenting the various graphics card fan headers encountered in our research and the adapter products engineered for these connectors.

While graphics card fans may use connectors smaller than the 4-pin PWM fan specification published by Intel, they adhere to the same electrical specifications, including voltage, tachometer and PWM signal, and wiring sequence. This compatibility has simplified our process of reverse engineering each connector to offer fan adapter cables that allow expanded connectivity.

Users can thus maintain superior fan speed monitoring and control through their graphics card software for aftermarket heatsink installations and small form factor deshroud modifications.

⚠️ Attention
Graphics cards often use the same or similar connectors for LED lighting. Take note of this to avoid the possibility of damaging your hardware.
We highly encourage users to research their exact graphics card model and use resources such as the excellent teardown and PCB photos published by TechPowerUp.